Soap-press



3 SheetsSheet 1.

(No Model.)

W. 0; SMITH.

SOAP PRESS.

- No. 592,214. Patented Oct. 19,1897.

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No Model.) W 0 SMITH 3 Sheets-Sheet 2.

SOAPPRBSS.

Patented Oct. 19,1897.

Atty.

(DIFQVEN'TOEC. I

(No Model.) 3 Sheets-Sheet 3.

G. SMITH. SOAP PRESS.

No. 592,214, Patented Oct. 19,1897.

' INVENTOR,

WITNESSES UNITED STATES:

PATENT Erica.

SOAP-PRESS.

SPECIFICATION forming part of Letters Patent No. 592,214, dated October 19, 1897.

Application filed geptemher 29, 1896. Serial No. 607,300. (No model.)

To all whom it may concern:

Be it known that 1, W LLIAM 0. SMITH, a citizen of the United States, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented or discovered certain new and useful-Improvements in Soap Presses, of which improvements the following is a specification. V

The invention described herein relates to certain improvements in the formation of the outline of designs incakes of soap in such manner that such outline, which is in a soap having a color different from that of the body of the cake, shall be distinct as to color and shaped at all times without regard to the wearingaway of the cake while in use.

I plungers.

The invention is hereinafter more fully described and claimed. I

In the accompanying drawings, forming a part of this specification, Figure 1 is a view' partly in front elevation and partly in section. Fig. 2 is a View, partly in side elevation and partly in section, of the machine. Figs. 3 and 4 are'plan views showing the two positions of the reciprocating cut-off slide. Figs. 5, 6-, and 7 are sectional views illustrating different positions of the plungers and cut-ofi slide, and Figs/8 and 9 are perspective views 'of the stripping-plate and auxiliary plunger. Figs. 10 and 11 are detail views illustrating the mechanism foroperating the In the practice of my invention I provide a suitable bed-plate 1, supported at a proper. height by posts or supports and having secured thereon an upright or standard 3, adapt-. ed to support the plungers and their operating mechanism. 011 the standard or upright 3 are secured guides at for cross-head 5, to the under side of which is secured the hollow main plunger 6. The cross-head 5 is 'operated by means of eccentrics 7, secured on the power-shaft 8, surrounded by yokes 9, which are connected by rods 10 to the cross-head and are guided by upwardl y-proj ectin g stems 11, passing through guides 12. Within'the hollow plunger 6 is arranged ase'condary or auxiliary plunger 13, connected to a rod 14,

passing through the cross-head 5 and pro vided at its upper end witha yoke 15, surrounding the eccentric 16, said yoke being provided with an upwardly-extending stem 18, passing through guide 19. The blades 20 for forming the design cavity or cavities in the cake of soap are secured to the under side of the secondary or auxiliary plunger 13, and are made of such a length that when the main and auxiliary plun'gers are at the upper limits of their movements the lower edges of said blades will be flush with the under surface of the stripping-plate 21, which has openings formed therethrough corresponding to the cross-sectional shape and contour of the blades and is secured to the lower end of the main plunger 6.

The bed-plate 1 is'longitudinally grooved, the edges of said groove being suitably constructed, as shown: in Fig. 1, to serve as guides for the cut-ofi slide 22. This slide is provided with openings therein corresponding to the cross-sectional shape and dimensions of the blades 20. The slide is operated by means of cams 23 on the power-shaft 8 through the medium of the levers 24, pivotally mounted on the standard 3, and having their lower ends flexibly connected to the slide 22, as shown in Fig. 2. The cams 23 operate the slide in one direction, the opposite movement ther'eofbeing effected by a spring 25, interposed between the stationary abutment 26 on the bed-plate and the shoulder 27 on the slide. The spring also serves to hold the upper ends of the levers 24 in contact with their operating-cams 23. are so constructed as to shift the slide such a distance as to bring the openings'therein into line with the blades in the secondary or auxiliary plunger. An openingis formed through the bed-plate 1 in line with the auxiliary plunger, and on the under side of the bedplate is secured the cylinder or reservoir 28, having the discharge-outlet 29 in line with the opening through the bed-plate. WVithin this cylinder is arranged a piston 30, provided with a threaded stem 31, extending through the head of the cylinder, and having mounted thereon a nut 32, provided with a toothed periphery. The nut 32 is held stationary as against movement away from the head of the cylinder by means of a strap 33, surrounding the stem 31, and secured to the cylinder-hea'd. The nut is rotated by means of a pawl 34, adjustably connected to the arm 36 on the shaft 37 which is mounted in suit- The cams able hearings on the cylinder or frame of the machine. The shaft 37 is provided with a second arm 38, adapted to be shifted so as to rotate the shaft by the levers 2t, or by the reciprocating slide.

I11 operating my improved machine a quantity of soap which is to be formed into a cake is placed in the frame or mold 39, and the latter then placed in position under the plunger, as shownin Figs. 1 and 2. Previous to operating the pressing-plunger the cylinder 28 is charged with soap, colored in accordance with the desired color of the design to be formed, and the pistons move inwardly until soap is forced through discharge-opening 29 until it bears with some considerable degree of pressure against the under side of the reciprocating slide. The main plunger is then caused to descend, the cam operating the secondary or auxiliary plunger being so adjusted as to cause the secondary plunger to move a little faster than the main plunger. The cams of the two plungers are so adjusted that when the shoulders it) on main plunger bear against the upper edge of the frame or mold 339, the lower ends of the blades 20 will bear against the upper surface of the reciprocating slide. The reciprocating slide is shifted by its cams so as to bring the openings therein in line with the blades, when the secondary plunger beginsits return movement, so as to permit the soap from the cylinder or reservoir 28 to be forced up into the openings left in the compressed cake of soap by the retreating blades. In order to effect this upward How of soap from the reservoir, the piston therein is moved inward by the mechanism described simultaneous with the described movements of the reciprocating slide, so that the soap from the reservoir is caused to closely follow the blades in their upward movement. As the lower ends of the blades 20 come into register with the under surfaces of the stripping-blade the two plungers move up together, the reciprocating slide having been first shifted by its spring so as to close the outlet-opening from the reservoir or cylinder.

It may sometimes occur that an excess of soap is placed in the mold or frame, and when subjected to pressure and subsequently released by the upward movement of the blades, as described, the soap forming the cake will flow back into the cavities left by the blades and prevent the upward flow of soap from the reservoir or cylinder. In order to prevent this, one or more openings is formed through the walls of the mold or frame 30 for the escape of any excess of soap placed in the frame.

It is preferred to form the openings of the reciprocating slide corresponding, as hereinbefore stated, to the size and contour of the blades in a block independent of the slide, and adapted to be secured in a suitable opening in. the slide by means of keys 4:2 or any other suitable device.

I claim herein as my invention- 1. In a soap-press, the combination of a mold, a compressirig-plunger, blades operative simultaneous with the plunger for forming cavities through the compressed soap, and means for forcing soap into said cavities simultaneous with the movement of the blades out of the cavities, substantially as set forth.

2. In a soap-press, the combination of a supporting-plate having an opening therethrough, a slide movable back and forth over said opening, a mold, a plunger for compressing soap in the mold, blades for forming cavities in the compressed soap, means for forcing soap through the opening in the supporting'plate and openings in the slide corresponding to the contour of the blades, substantially as set forth.

In a soap-press, the combination of a supporting-plate having an opening therethrough, a slide provided with an opening and movable back and forth over said opening, in the supporting-plate, a mold, a plunger for compressing soap in the mold,blades for forming passages through the soap, a soap-reservoir having a discharge-opening in line with the opening in the supportingplate and means for forcing soap from the reservoir or cylinder, substantially as set forth.

In testimony whereof I have hereunto set my hand.

WILLIAM 0. SMITH.

\Vitnesses:

DARWIN S. WoLco'r'r, 'F. E. GAI'IHER. 

